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Research · Sport Utility Vehicle - 2WD

2009 Mercury Mariner HybridRecalls, problems, MPG & safety

NHTSA lists 0 safety recalls and 21 owner complaints for the 2009 Mercury Mariner Hybrid. Most complaints involve steering (8) and vehicle speed control (6). The EPA rates it 28–32 mpg combined.

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Combined MPG
28–32mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
21
Top: steering
Fuel cost / yr
$1,950est.
EPA estimate, best version
01 —Recalls

Safety recalls

NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2009 Mercury Mariner Hybrid as of Nov 9, 2026.
Data from NHTSA Recalls API · synced Nov 9, 2026NHTSA vehicle page
02 —Complaints

Owner complaints by component

21 complaints filed with NHTSA · Aug 2010 – May 2019
  1. Steering8
  2. Vehicle speed control6
  3. Engine4
  4. Fuel/propulsion system3
  5. Electrical system3
  6. Service brakes2
  7. Power train1
  8. Electronic stability control (esc)1
  9. Service brakes, hydraulic1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Mariner Hybrid model year we’ve synced.

View as table
Model yearNHTSA complaints
200638
200731
2008116
200921
2010279
201184
20121
Crashes reported
2
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 9, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Steering

8 reports1 crash
“VEHICLE STEERING IS INTERMITTENTLY GOING OUT AND DRIVER IS UNABLE TO TURN THE VEHICLE. I HAVE CONTACTTED FORD AND THERE IS AN EXISTING RECALL (14S05) FOR THIS VERY ITEM AND MY VEHICLE (YEAR, MAKE & MODEL) IS LISTED BUT THEY SAY MY SPECIFIC VEHICLE DOES NOT QUALIFY.”
Owner complaint to NHTSAFiled May 21, 2019SteeringODI 11209102

Vehicle speed control

6 reports1 crash
“I WAS ON MY WAY TO DROP MY 3 MONTH OLD OFF AT DAYCARE AND THEN TO WORK. I WAS DRIVING DOWN THE HIGHWAY GOING 60 MPH WITH THE CRUISE CONTROL SET WHEN I FEEL THE CAR START TO JERK BACK AND FORTH A LITTLE. I LOOK AT MY GAUGES ALL ARE NORMAL EXCEPT THE RPM GAUGE IS JUMPING UP AND DOWN THEN ALL OF A SUDDEN IT IS KICK OUT OF CRUISE CONTROL, AND I LOSE ACCELERATION AND A WRENCH LIGHT CAME ON. I WAS ALMOST HIT BY 2 VEHICLES BECAUSE OF THE SUDDEN LOSE ON SPEED. AS I WAS LOSING ACCELERATION, I WAS TRYING NOT TO BRAKE BECAUSE I THOUGHT IT WAS GOING TO DIE. IT DID NOT DIE BUT I WAS NOT ABLE TO GO ANY FASTER THAN 25 -30 MPH. I DROVE IT STRAIGHT TO MY MECHANIC AND GOT THE CODE P2112. THIS IS FOR THE THROTTLE BODY. THERE WAS A RECALL ISSUED ON THIS FOR THE MERCURY MARINERS BUT IT DID NOT INCLUDE THE HYBRIDS. PLEASE HELP”
Owner complaint to NHTSAFiled Aug 30, 2017Power train, Vehicle speed control, EngineODI 11020561

Engine

4 reports
“2009 MERCURY MARINER HYBRID WITH 93000 MILES DRIVING 50 MPH ON A SIX-LANE BLVD. HESITATES BRIEFLY, THEN ACCELERATOR CEASES TO FUNCTION COMPLETELY. DESPITE THE EXTREMELY DANGEROUS SITUATION, WE MANAGED TO MANEUVER THE CAR OFF THE ROAD TO SAFETY. WARNING LIGHT (TRIANGLE WITH EXCLAMATION POINT) AND WARNING MESSAGE "STOP SAFELY NOW". THE CAR COMPUTER KNOWS THERE IS A PROBLEM, WHY DOESN'T FORD? THEY CONDUCTED A "CUSTOMER SATISFACTION PROGRAM" FOR MILLIONS OF ESCAPE AND MARINER OWNERS FOR THIS VERY ISSUE - THROTTLE BODY DEFECT - BUT NOT HYBRIDS. WHY NOT? IT COST US $300 AND NEARLY A MULTI-CAR ACCIDENT. FORD NEEDS TO BE HELD ACCOUNTABLE FOR MANUFACTURERS DEFECTS IN ALL CARS, NOT JUST SOME. PUTTING FAMILIES IN HARM'S WAY BECAUSE FORD DOESN'T HAVE THE INTEGRITY TO TAKE RESPONSIBILITY FOR THEIR VEHICLE ISSUES IS COMPLETELY UNACCEPTABLE. THIS SHOULD BE INVESTIGATED, AND FORD NEEDS TO BE HELD LIABLE.”
Owner complaint to NHTSAFiled Nov 7, 2016EngineODI 10924881
All 2009 Mariner Hybrid problemsSend a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
Engines
2.5L 4-cyl hybrid
Transmissions
Automatic (variable gear ratios)
Drive
Front-Wheel Drive · 4-Wheel or All-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 9, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Mariner Hybrid FWD
Auto (variable gear ratios), 4 cyl, 2.5 L · Front-Wheel Drive
343132$1,950278
Mariner Hybrid 4WD
Auto (variable gear ratios), 4 cyl, 2.5 L · 4-Wheel or All-Wheel Drive
292728$2,200317
  • Mariner Hybrid FWD
    Auto (variable gear ratios), 4 cyl, 2.5 L
    34 city · 31 hwy · $1,950/yr
    32
    mpg comb.
  • Mariner Hybrid 4WD
    Auto (variable gear ratios), 4 cyl, 2.5 L
    29 city · 27 hwy · $2,200/yr
    28
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 9, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2009 Mercury Mariner Hybrid as of Nov 9, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 9, 2026Vehicle 5126
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2009 Mariner Hybrid questions

How many recalls does the 2009 Mercury Mariner Hybrid have?

0 recalls found in NHTSA data as of Nov 9, 2026.

What are the most common 2009 Mercury Mariner Hybrid problems?

Owners filed 21 complaints with NHTSA. The most-cited components are steering (8), vehicle speed control (6), engine (4). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2009 Mercury Mariner Hybrid get?

The EPA rates the 2009 Mercury Mariner Hybrid at 28–32 mpg combined, depending on engine and drivetrain (2 versions rated).

Data from NHTSA & EPA · synced Nov 9, 2026